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20 Questions Scavenger Hunt Review – Chemistry Test 1
20 Questions Scavenger Hunt Review – Chemistry Test 1
1. What are the 3 subatomic particles that make up an atom and what is the charge of each?
1. What are the 3 subatomic particles that make up an atom and what is the charge of each?
2. The atomic mass of an atom is made up of which 2 subatomic particles added together?
2. The atomic mass of an atom is made up of which 2 subatomic particles added together?
3. Where would you find the protons and neutrons in an atom? Electrons?
3. Where would you find the protons and neutrons in an atom? Electrons?
4. The atomic number of an element also tells you which other information about a neutral
atom?
4. The atomic number of an element also tells you which other information about a neutral
atom?
5. What happens when the number of electrons change in an atom?
5. What happens when the number of electrons change in an atom?
6. Phosphorus-31 & Phosphorus-32 are both the element Phosphorus (P). Phosphorus-31
has a mass of 31. Phosphorus-32 has a mass of 32. What is the difference between these to
atoms of Phosphorus?
6. Phosphorus-31 & Phosphorus-32 are both the element Phosphorus (P). Phosphorus-31
has a mass of 31. Phosphorus-32 has a mass of 32. What is the difference between these to
atoms of Phosphorus?
7. Isotopes are versions of the same element with a different number of ____________.
7. Isotopes are versions of the same element with a different number of ____________.
8. Start with the element Oxygen and add a proton to it, which element would it become?
8. Start with the element Oxygen and add a proton to it, which element would it become?
9. If a Calcium atom loses 2 electrons then it will become a _______ with a charge of ______.
9. If a Calcium atom loses 2 electrons then it will become a _______ with a charge of ______.
10. If Sulfur gains 3 electrons then it will become a negative ____ with ____ total electrons.
10. If Sulfur gains 3 electrons then it will become a negative ____ with ____ total electrons.
11. What are the 3 classes of elements on the Periodic Table?
11. What are the 3 classes of elements on the Periodic Table?
12. Which group on the Periodic Table is the MOST reactive?
12. Which group on the Periodic Table is the MOST reactive?
13. Which groups on the Periodic Table are commonly used for things like tools, coins, or
jewelry?
13. Which groups on the Periodic Table are commonly used for things like tools, coins, or
jewelry?
14. How many valence electrons does Sodium (Na – element 11) have?
14. How many valence electrons does Sodium (Na – element 11) have?
15. What is a row on the Periodic Table called?
15. What is a row on the Periodic Table called?
17. What is a column on the Periodic Table called?
17. What is a column on the Periodic Table called?
18. Why are certain elements grouped together in the same family/group?
18. Why are certain elements grouped together in the same family/group?
19. An element like Silicon (Si) can act like a metal or a non-metal. It belongs to which class
of elements on the Periodic Table?
19. An element like Silicon (Si) can act like a metal or a non-metal. It belongs to which class
of elements on the Periodic Table?
20. Uranium-235 has a mass of 235. It takes 704 million years for half a sample of
Uranium-235 to lose enough protons (decay) to become Lead (PB – element 82).
a) How many neutrons are in an atom of Urnium-235?
b) How many protons must is lose to become lead?
20. Uranium-235 has a mass of 235. It takes 704 million years for half a sample of
Uranium-235 to lose enough protons (decay) to become Lead (PB – element 82).
a) How many neutrons are in an atom of Urnium-235?
b) How many protons must is lose to become lead?